Protective rubber cap included only with Class 3B lasers and above.

Laser Diode Modules, Modulation

Variety of wavelengths available
Ultra-fine PID temperature controller inside
Ultra-stable wavelength control with high output power
Analog modulation up to 20 MHz, or digital modulation up to 100 MHz
Circular or elliptical beam

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Overview
Specifications
Ordering
Literature & Downloads

The LQA and LQD Series Diode Laser Modules, with an analog and a digital modulation input, respectively, are available at various wavelengths from 375 nm to 1550 nm with high optical power levels. These diode laser modules include self-contained modules with superior optical quality, a very high precision current source and a PID temperature controller, built in the module. All the diode laser modules are available either in elliptical (the E versions) or circular beam output (the C version). The wavelength indicated is typical values only, due to the nature of FP lasers.
LQA Series - Analog modulation of up to 20 MHz
LQD Series - Digital modulation (via TTL) of up to 100 MHz
To modulate the LQA Series diode laser modules from below-threshold (at 0 V) to full power (at +1 V) requires an external 1 VDC analog input. To modulate the LQD Series from below-threshold to full power requires a user-supplied external 0-5 V TTL modulation signal (0 V yields full power). Download the user's manual for complete operating instructions. The modulation sources must be provided by the user. LQA-CAB cable is recommended for modulation interface between the modulation source and the diode laser module.
LPMS Series Power Supplies must be used for these diode laser modules and meet CDRH requirements by providing an interlock input, key enable switch, delayed start-up, and laser active indicator. Warranty is not applicable when a custom power supply is used to drive the module. The laser modules in the wavelength range of 375-473 nm require an 8/12 VDC power source like the LPMS-8-110 . Those in the range of 635-1550 nm require a 5 VDC power source like the LPMS-5-110 . These units are shown in the ordering table below and must be ordered separately.

Applications

Spectroscopy
Interferometry
Machine vision
Marking
Flow cytometry
Tissue fluorescence

Wide Variety of Laser Modules

They are available at various wavelengths and output power levels, with the choice of either Elliptical (E versions) or Circular (C versions) output beam shape. Circular beams are generated using a micro lens built in the diode laser module and exhibit better quality than elliptical versions. Newport strives to offer high performance laser diode modules with a variety of different output wavelength and a high output power and beam quality to provide the maximum flexibility in your research.

Specifications

		LQA Series	LQD Series
Center Wavelength Tolerance
	<700nm Modules	±10 nm
	700-1300nm Modules	±15 nm
	1300-1600nm Modules	±20 nm
Beam Diameter (1/e²) (mm)	E version	1.5 x 5.25
Beam Diameter (1/e²) (mm)	C version	1
Beam Divergence Full Angle (mrad)	E version	<1.5 x 0.7
Beam Divergence Full Angle (mrad)	C version	<1.2
Noise (%)		<0.5
Power Stability (%)		<1% (8 hr.)
Current, Operating, Maximum (mA)		3000
Rise/Fall Time (ns)¹⁾		6 - 10	2
Operating Voltage (VDC)		8 for 375-475 nm, 5 for 635-2330 nm
Operating Temperature Range (°C)		0–40
Laser Head Size [in. (mm)]		1.50 D x 6.20 L (38.05 D x 157.48 L)

Notes:
1) Analog modulation rise and fall times are 20ns for wavelengths less than 500nm.

Model	Description	avail raw	Availability	price raw	Price	Qty. MULTI ADD
A-2-1.5	Optical Mount Adaptor, 50.8mm to 38.1mm (2 to 1.5 inch)	0	In Stock	52	$52.99	ADD
LPMS-5-110	Power Supply for Laser Diode Module, 635-2330 nm Diodes, 5V DC/110 VAC	3	3 Weeks	292	$292.90	ADD
LPMS-5-220	Power Supply for Laser Diode Module, 635-2330 nm Diodes, 5V DC/220 VAC	3	3 Weeks	494	$494.90	ADD
LPMS-8-110	Power Supply for < 500 nm Laser Diode Module, 8V DC/110 VAC	5	5 Weeks	292	$292.90	ADD
LPMS-8-220	Power Supply for < 500 nm Laser Diode Module, 8V DC/220 VAC	5	5 Weeks	494	$494.90	ADD
LQA-CAB	Interface Cable for LQA, and LQD Laser Modules	0	In Stock	39	$39.39	ADD
LQA1310-05E	LD Module, 1310 nm, 5 mW, Analog, Elliptical Beam	4	4 Weeks	1745	$1,745.00	ADD
LQA1550-05E	LD Module, 1550nm, 5mW, Analog, Elliptical beam	5	5 Weeks	1835	$1,835.00	ADD
LQA2330-2.5E	LD Module, 2330 nm, 2.5 mW, Analog, Elliptical Beam	7	7 Weeks	4690	$4,690.00	ADD
LQA405-85E	LD Module, 405nm, 85mW, Analog, Elliptical beam	5	5 Weeks	7390	$7,390.00	ADD
LQA635-03C	LD Module, 635 nm, 3 mW, Analog, Circular Beam	4	4 Weeks	1690	$1,690.00	ADD
LQA635-08C	LD Module, 635 nm, 8 mW, Analog, Circular Beam	4	4 Weeks	1890	$1,890.00	ADD
LQA639-30C	LD Module, 639nm, 30mW, Analog, Circular beam	5	5 Weeks	2490	$2,490.00	ADD
LQA658-30C	LD Module, 658nm, 30mW, Analog, Circular beam	5	5 Weeks	1720	$1,720.00	ADD
LQA660-110C	LD Module, 660nm, 110mW, Analog, Circular beam	5	5 Weeks	2070	$2,070.00	ADD
LQA690-30C	LD Module, 690nm, 30mW, Analog, Circular beam	5	5 Weeks	1930	$1,930.00	ADD
LQA705-38E	LD Module, 705nm, 38mW, Analog, Elliptical beam	5	5 Weeks	2320	$2,320.00	ADD
LQA785-03E	LD Module, 785 nm, 3 mW, Analog, Elliptical Beam	4	4 Weeks	1490	$1,490.00	ADD
LQA830-30C	LD Module, 830 nm, 30 mW, Analog, Circular Beam	6	6 Weeks	2250	$2,250.00	ADD
LQA850-120E	LD Module, 850nm, 120mW, Analog, Elliptical beam	5	5 Weeks	3290	$3,290.00	ADD
LQA870-90E	LD Module, 870nm, 90mW, Analog, Elliptical beam	5	5 Weeks	4595	$4,595.00	ADD
LQA905-85E	LD Module, 905nm, 85mW, Analog, Elliptical beam	5	5 Weeks	2350	$2,350.00	ADD
LQA940-90E	LD Module, 940nm, 90mW, Analog, Elliptical beam	5	5 Weeks	4690	$4,690.00	ADD
LQA980-220E	LD Module, 980 nm, 220 mW, Analog, Elliptical Beam	4	4 Weeks	3390	$3,390.00	ADD
LQD1310-05E	LD Module, 1310 nm, 5 mW, Digital, Elliptical Beam	4	4 Weeks	1745	$1,745.00	ADD
LQD1550-05E	LD Module, 1550nm, 5mW, Digital, Elliptical beam	5	5 Weeks	1845	$1,845.00	ADD
LQD2000-2.5E	LD Module, 2000 nm, 2.5 mW, Digital, Elliptical Beam	7	7 Weeks	4095	$4,095.00	ADD
LQD2330-2.5E	LD Module, 2330 nm, 2.5 mW, Digital, Elliptical Beam	7	7 Weeks	4690	$4,690.00	ADD
LQD635-03C	LD Module, 635 nm, 3 mW, Digital, Circular Beam (microlens)	4	4 Weeks	1690	$1,690.00	ADD
LQD635-08C	LD Module, 635 nm, 8 mW, Digital, Circular Beam (microlens)	4	4 Weeks	1890	$1,890.00	ADD
LQD639-30C	LD Module, 639nm, 30mW, Digital, Circular beam	5	5 Weeks	2090	$2,090.00	ADD
LQD658-30C	LD Module, 658nm, 30mW, Digital, Circular beam	5	5 Weeks	1720	$1,720.00	ADD
LQD660-110C	LD Module, 660nm, 110mW, Digital, Circular beam	0	In Stock	1790	$1,790.00	ADD
LQD690-30C	LD Module, 690nm, 30mW, Digital, Circular beam	5	5 Weeks	1930	$1,930.00	ADD
LQD705-38E	LD Module, 705nm, 38mW, Digital, Elliptical beam	5	5 Weeks	2312	$2,312.90	ADD
LQD830-30C	LD Module, 830 nm, 30 mW, Digital, Circular Beam (microlens)	5	5 Weeks	2245	$2,245.00	ADD
LQD870-90E	LD Module, 870nm, 90mW, Digital, Elliptical beam	5	5 Weeks	4600	$4,600.00	ADD
LQD905-85E	LD Module, 905nm, 85mW, Digital, Elliptical beam	5	5 Weeks	2350	$2,350.00	ADD
LQD940-90E	LD Module, 940nm, 90mW, Digital, Elliptical beam	5	5 Weeks	4600	$4,600.00	ADD
LQD980-220E	LD Module, 980nm, 220mW, Digital, Elliptical beam	7	7 Weeks	1490	$1,490.00	ADD
U200-A	Precision Clear Edge Mirror Mount, 2.0 in. Diameter, No Actuators, 8-32 (M4) CLR	0	In Stock	129	$129.99	ADD